A theoretical analysis of vacuum arc thruster performance

In vacuum arc discharges the current is conducted through vapor evaporated from the cathode surface. In these devices very dense, highly ionized plasmas can be created from any metallic or conducting solid used as the cathode. This paper describes theoretical models of performance for several thruster configurations which use vacuum arc plasma sources. This analysis suggests that thrusters using vacuum arc sources can be operated efficiently with a range of propellant options that gives great flexibility in specific impulse. In addition, the efficiency of plasma production in these devices appears to be largely independent of scale because the metal vapor is ionized within a few microns of the cathode electron emission sites, so this approach is well-suited for micropropulsion.

[1]  E. Oks,et al.  Ion charge state distributions in high current vacuum arc plasmas in a magnetic field , 1996 .

[2]  A. Nürnberg,et al.  Temperature dependence of the erosion of A1 and TiC by vacuum arcs in a magnetic field , 1981 .

[3]  B. Jüttner On the variety of cathode craters of vacuum arcs, and the influence of the cathode temperature , 1982 .

[4]  M. Kristiansen,et al.  Performance Of In-Situ Copper Alloys As Electrodes In High Current, High Energy Switches , 1988, Photonics West - Lasers and Applications in Science and Engineering.

[5]  E. Oks,et al.  Ion charge state distributions of pulsed vacuum arc plasmas in strong magnetic fields , 1998 .

[6]  B. Juttner,et al.  Current Density in Arc Spots , 1985, IEEE Transactions on Plasma Science.

[7]  J. Daalder Components of cathode erosion in vacuum arcs , 1976 .

[8]  C. W. Kimblin,et al.  Erosion and ionization in the cathode spot regions of vacuum arcs , 1973 .

[9]  P. Siemroth,et al.  Investigations of the Current Density in the Cathode Spot of a Vacuum Arc , 1985 .

[10]  C. Kimblin Cathode spot erosion and ionization phenomena in the transition from vacuum to atmospheric pressure arcs , 1974 .

[11]  R. Wirz,et al.  Development and Testing of a 3 cm Electron Bombardment Micro-Ion Thruster , 2001 .

[12]  James E. Polk,et al.  Performance of Field Emission Cathodes in Xenon Electric Propulsion System Environments , 2000 .

[13]  Jochen Schein,et al.  Low Mass Vacuum Arc Thruster System for Station Keeping Missions , 2001 .

[14]  André Anders,et al.  Pulsed dye laser diagnostics of vacuum arc cathode spots , 1992 .

[15]  I. Brown,et al.  Vacuum arc ion charge-state distributions , 1991 .

[16]  A. Anders,et al.  High-resolution imaging of vacuum arc cathode spots , 1996 .

[17]  J. Augis,et al.  Cathodic contact erosion due to short-duration gas breakdown arcs , 1972 .

[18]  A. Anders Ion charge state distributions of pulsed vacuum arcs-interpretation of their temporal development , 1998 .

[19]  M. Keidar,et al.  Voltage of the vacuum arc with a ring anode in an axial magnetic field , 1997 .

[20]  E. Oks,et al.  Ion velocities in vacuum arc plasmas , 2000 .

[21]  B. Juttner Characterization of the Cathode Spot , 1987, IEEE Transactions on Plasma Science.

[22]  J. Daalder Cathode erosion of metal vapour arcs in vacuum , 1978 .

[23]  R. Behrisch,et al.  First Wall Erosion by Arcing , 1984 .

[24]  D. Post,et al.  Surface Erosion by Electrical Arcs , 1986 .

[25]  G. Eckhardt Interpretation of data on cathode erosion and efflux from cathode spots of vacuum arcs , 1975 .

[26]  J. Kutzner,et al.  Ion flux from the cathode region of a vacuum arc , 1989 .

[27]  H. Kaufman Technology of Electron-Bombardment Ion Thrusters , 1975 .

[28]  John K. Ziemer,et al.  Performance Measurements Using a Sub-Micronewton Resolution Thrust Stand ∗ , 2001 .

[29]  J. Daalder Erosion and the origin of charged and neutral species in vacuum arcs , 1975 .

[30]  D. K. Davies,et al.  Erosion products from the cathode spot region of a copper vacuum arc , 1978 .

[31]  V. N. Ryzhkov,et al.  HIGH-SPEED PLASMA BEAMS IN VACUUM ARCS , 1964 .

[32]  I. Brown,et al.  Measurements of vacuum arc ion charge-state distributions , 1989 .

[33]  A. Anders,et al.  Time dependence of vacuum arc parameters , 1993 .

[34]  C. Kimblin,et al.  Experimental observations of cathode‐spot surface phenomena in the transition from a vacuum metal‐vapor arc to a nitrogen arc , 1982 .

[35]  S. Goldsmith,et al.  Angular distribution of ion current emerging from an aperture anode in a vacuum arc , 1989 .

[36]  A. Anders,et al.  Correlation between cathode properties, burning voltage, and plasma parameters of vacuum arcs , 2001 .

[37]  A. Anders,et al.  On modes of arc cathode operation , 1991 .

[38]  J. Daalder Cathode spots and vacuum arcs , 1981 .

[39]  J. Heberlein,et al.  The Interaction of Vacuum Arc Ion Currents with Axia I Magnetic Fields , 1983, IEEE Transactions on Plasma Science.

[40]  M. Kristiansen,et al.  Mechanism of electrode surface damage and material removal in high current discharges , 1986 .

[41]  J. Prock Time-Dependent Description of Cathode Crater Formation in Vacuum Arcs , 1986, IEEE Transactions on Plasma Science.

[42]  I. Brown,et al.  Cathode erosion rates in vacuum-arc discharges , 1990 .

[43]  A. Anders Ion charge state distributions of vacuum arc plasmas: The origin of species , 1997 .

[44]  R. Behrisch,et al.  Arc velocity and erosion for stainless steel and aluminum cathodes , 1982 .

[45]  G. Belkin Dependence of Electrode Erosion on Heat Flux and Duration of Current Flow , 1971 .